Chemistry Trichloroethane, C2H3Cl3, is the active ingredient in aerosols that claim to stain-proof men's ties. Trichloroethane has a vapor pressure of 100.0 mm Hg at 20.0 C and boils at 74.1 C. An uncovered cup (1/2 pint) of trichloroethane (d=1.325 g/mL) is kept in an 18-ft3 ...
January 27, 2014

ChemistryIf P4 (white phosphorous) forms different compounds with chlorine (Cl3) depending on the amount of chlorine present (limited chlorine forms PCl3 and chlorine in excess forms PCl5) design an experiment that could be performed to verify each synthesis reaction. Include a ...
October 27, 2013

Math (Geometry) 10. The vertices of a triangle are listed below. J(2,-7), K(2,5), L(10,-1) Which of the following correctly classifies the triangle? A. The triangle is an acute isosceles triangle. B. The triangle is an acute equilateral triangle. C. The triangle is a right isosceles triangle...
August 7, 2012

Physics bobpursleyhello ok i realized what you meant. =) An object of mass M = 921 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal. The normal force acts perpendicular to the slope. The slope is the x-component and y ...
October 14, 2009

PhysicsA tennis ball of mass 57. g bounces off a wall. Right before hitting the wall, the ball is moving to the right and up with vx=+40. m/s and vy=+10. m/s. Right after bouncing off the wall, the ball is moving to the left and up with vx=-35. m/s and vy=+10. m/s. If the ball is in ...
October 14, 2009

PhysicsAn object of mass M = 884 g lies on a table. It is free to move along a horizontal, frictionless surface. This object is connected to a second object that hangs along the slide of the table by a massless string that runs over a pulley and connects both masses. This object has ...
October 14, 2009

Physics An object of mass M = 1,338 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50 degrees with the horizontal. Incline is increasing. What is the magnitude of the force that is exerted by the inclined surface on the object?
October 14, 2009

PhysicsAll forces in this problem act on an object along the same axis. Two forces have values -5N +10N respectively. What should be done to bring the system into mechanical equilibrium???
October 14, 2009

PhysicsThat is weird I had posted a question before!! lol anyways the question was; All forces in this problem act on an object along the same axis. Two forces have values -5N +10N respectively. What should be done to bring the system into mechanical equilibrium??? add a third force ...
October 14, 2009

Physics All forces in this problem act on an object along the same axis. Two forces have values F = - 5 N and f = +10 N. What do we do to bring the objects in mechanical equilibrium?
October 14, 2009

Physicsok, so what do you mean by component of weight? anyways, this is what i thought should be the answer F= mgsin(θ) is that correct?
October 14, 2009

PhysicsAn object of mass M = 1,338 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50 degrees with the horizontal. Incline is increasing. What is the magnitude of the force that is exerted by the inclined surface on the object?
October 14, 2009

college mathAssume that there are 16 board members: 10 females, and 6 males including Larry. There are 4 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment. (1) Find the probability that both males and females are given a task. (2...
March 2, 2009